I looked at the description of the TIE interceptor and it says "replaces the aging TIE fighter. Does that mean the original TIE fighters will be removedfrom FOC and be replaced by the new onces? or are we going to be able to upgrade these TIES at a certain Tech level ? likein Tech3 there would be a "upgrade TIES" upgrade ?

I doubt that the regular TIEs will be removed from the game. It's more likely that the Interceptors will become unlocked at tech level 3 or 4, and from then on either your Star Destroyers will produce those instead of regular TIEs, or you'll be able to build them for credits like the Rebels do their starfighters.

"We think in language; therefore, the quality of our thoughts can only be as good as the quality of our language."

Darth_Torpid-PG
Is there any possibility that it could be made so the player can command the fighters to launch instead of having them do so automatically.

I always thought it would have been nice to make the Imperial fighters like the rebellion, but be able to place them in Ships like a troop transports. So drag and drop fighter squadrons on a SSD until all its slots are full. This way if you wanted a ship to carry all bombers and one to carry all Fighters you could do so. Same with AT-ATs and Stormtroopers.

Being able to call units at the right time would be a plus. Having them auto-spawn into a fleet of Corellian Corvettes and getting mowed away then running out of them isnít cool.